Martina Dalić

Plenkovic has developed a strategy of silence on many of the scandals that have embroiled his own ministers and party colleagues, to good effect, Mamic said.

"If you look at his position, this is effective and efficient communication," she said. "He gives short answers, because obviously the outcome of all these cases could go in any direction."

Croatia's parliament on Friday confirmed the appointments of a new Vice-Prime Minister and Economy Minister - who will be in charge of handling the Agrokor crisis.

Following the resignation of Martina Dalic on May 14, her former positions are assigned to Agriculture Minister Tomislav Tolusic, as Deputy Prime Minister, and to Darko Horvat, as Economy Minister.